﻿/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

 /* See https://github.com/libuv/libuv#documentation for documentation. */

#ifndef UV_H
#define UV_H
#include "huv.h"
#ifdef __cplusplus
extern "C" {
#endif

#if defined(BUILDING_UV_SHARED) && defined(USING_UV_SHARED)
#error "Define either BUILDING_UV_SHARED or USING_UV_SHARED, not both."
#endif

#ifdef _WIN32
    /* Windows - set up dll import/export decorators. */
# if defined(BUILDING_UV_SHARED)
    /* Building shared library. */
#   define UV_EXTERN __declspec(dllexport)
# elif defined(USING_UV_SHARED)
    /* Using shared library. */
#   define UV_EXTERN __declspec(dllimport)
# else
    /* Building static library. */
#   define UV_EXTERN /* nothing */
# endif
#elif __GNUC__ >= 4
# define UV_EXTERN __attribute__((visibility("default")))
#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550) /* Sun Studio >= 8 */
# define UV_EXTERN __global
#else
# define UV_EXTERN /* nothing */
#endif

#include "uv/errno.h"
#include "uv/version.h"
#include <stddef.h>
#include <stdio.h>

#if defined(_MSC_VER) && _MSC_VER < 1600
# include "uv/stdint-msvc2008.h"
#else
# include <stdint.h>
#endif

#if defined(_WIN32)
# include "uv/win.h"
#else
# include "uv/unix.h"
#endif

    /* Expand this list if necessary. */
#define UV_ERRNO_MAP(XX)                                                      \
  XX(E2BIG, "argument list too long")                                         \
  XX(EACCES, "permission denied")                                             \
  XX(EADDRINUSE, "address already in use")                                    \
  XX(EADDRNOTAVAIL, "address not available")                                  \
  XX(EAFNOSUPPORT, "address family not supported")                            \
  XX(EAGAIN, "resource temporarily unavailable")                              \
  XX(EAI_ADDRFAMILY, "address family not supported")                          \
  XX(EAI_AGAIN, "temporary failure")                                          \
  XX(EAI_BADFLAGS, "bad ai_flags value")                                      \
  XX(EAI_BADHINTS, "invalid value for hints")                                 \
  XX(EAI_CANCELED, "request canceled")                                        \
  XX(EAI_FAIL, "permanent failure")                                           \
  XX(EAI_FAMILY, "ai_family not supported")                                   \
  XX(EAI_MEMORY, "out of memory")                                             \
  XX(EAI_NODATA, "no address")                                                \
  XX(EAI_NONAME, "unknown node or service")                                   \
  XX(EAI_OVERFLOW, "argument buffer overflow")                                \
  XX(EAI_PROTOCOL, "resolved protocol is unknown")                            \
  XX(EAI_SERVICE, "service not available for socket type")                    \
  XX(EAI_SOCKTYPE, "socket type not supported")                               \
  XX(EALREADY, "connection already in progress")                              \
  XX(EBADF, "bad file descriptor")                                            \
  XX(EBUSY, "resource busy or locked")                                        \
  XX(ECANCELED, "operation canceled")                                         \
  XX(ECHARSET, "invalid Unicode character")                                   \
  XX(ECONNABORTED, "software caused connection abort")                        \
  XX(ECONNREFUSED, "connection refused")                                      \
  XX(ECONNRESET, "connection reset by peer")                                  \
  XX(EDESTADDRREQ, "destination address required")                            \
  XX(EEXIST, "file already exists")                                           \
  XX(EFAULT, "bad address in system call argument")                           \
  XX(EFBIG, "file too large")                                                 \
  XX(EHOSTUNREACH, "host is unreachable")                                     \
  XX(EINTR, "interrupted system call")                                        \
  XX(EINVAL, "invalid argument")                                              \
  XX(EIO, "i/o error")                                                        \
  XX(EISCONN, "socket is already connected")                                  \
  XX(EISDIR, "illegal operation on a directory")                              \
  XX(ELOOP, "too many symbolic links encountered")                            \
  XX(EMFILE, "too many open files")                                           \
  XX(EMSGSIZE, "message too long")                                            \
  XX(ENAMETOOLONG, "name too long")                                           \
  XX(ENETDOWN, "network is down")                                             \
  XX(ENETUNREACH, "network is unreachable")                                   \
  XX(ENFILE, "file table overflow")                                           \
  XX(ENOBUFS, "no buffer space available")                                    \
  XX(ENODEV, "no such device")                                                \
  XX(ENOENT, "no such file or directory")                                     \
  XX(ENOMEM, "not enough memory")                                             \
  XX(ENONET, "machine is not on the network")                                 \
  XX(ENOPROTOOPT, "protocol not available")                                   \
  XX(ENOSPC, "no space left on device")                                       \
  XX(ENOSYS, "function not implemented")                                      \
  XX(ENOTCONN, "socket is not connected")                                     \
  XX(ENOTDIR, "not a directory")                                              \
  XX(ENOTEMPTY, "directory not empty")                                        \
  XX(ENOTSOCK, "socket operation on non-socket")                              \
  XX(ENOTSUP, "operation not supported on socket")                            \
  XX(EOVERFLOW, "value too large for defined data type")                      \
  XX(EPERM, "operation not permitted")                                        \
  XX(EPIPE, "broken pipe")                                                    \
  XX(EPROTO, "protocol error")                                                \
  XX(EPROTONOSUPPORT, "protocol not supported")                               \
  XX(EPROTOTYPE, "protocol wrong type for socket")                            \
  XX(ERANGE, "result too large")                                              \
  XX(EROFS, "read-only file system")                                          \
  XX(ESHUTDOWN, "cannot send after transport endpoint shutdown")              \
  XX(ESPIPE, "invalid seek")                                                  \
  XX(ESRCH, "no such process")                                                \
  XX(ETIMEDOUT, "connection timed out")                                       \
  XX(ETXTBSY, "text file is busy")                                            \
  XX(EXDEV, "cross-device link not permitted")                                \
  XX(UNKNOWN, "unknown error")                                                \
  XX(EOF, "end of file")                                                      \
  XX(ENXIO, "no such device or address")                                      \
  XX(EMLINK, "too many links")                                                \
  XX(EHOSTDOWN, "host is down")                                               \
  XX(EREMOTEIO, "remote I/O error")                                           \
  XX(ENOTTY, "inappropriate ioctl for device")                                \
  XX(EFTYPE, "inappropriate file type or format")                             \
  XX(EILSEQ, "illegal byte sequence")                                         \
  XX(ESOCKTNOSUPPORT, "socket type not supported")                            \

#define UV_HANDLE_TYPE_MAP(XX)                                                \
  XX(ASYNC, async)                                                            \
  XX(CHECK, check)                                                            \
  XX(FS_EVENT, fs_event)                                                      \
  XX(FS_POLL, fs_poll)                                                        \
  XX(HANDLE, handle)                                                          \
  XX(IDLE, idle)                                                              \
  XX(NAMED_PIPE, pipe)                                                        \
  XX(POLL, poll)                                                              \
  XX(PREPARE, prepare)                                                        \
  XX(PROCESS, process)                                                        \
  XX(STREAM, stream)                                                          \
  XX(TCP, tcp)                                                                \
  XX(TIMER, timer)                                                            \
  XX(TTY, tty)                                                                \
  XX(UDP, udp)                                                                \
  XX(SIGNAL, signal)                                                          \

#define UV_REQ_TYPE_MAP(XX)                                                   \
  XX(REQ, req)                                                                \
  XX(CONNECT, connect)                                                        \
  XX(WRITE, write)                                                            \
  XX(SHUTDOWN, shutdown)                                                      \
  XX(UDP_SEND, udp_send)                                                      \
  XX(FS, fs)                                                                  \
  XX(WORK, work)                                                              \
  XX(GETADDRINFO, getaddrinfo)                                                \
  XX(GETNAMEINFO, getnameinfo)                                                \
  XX(RANDOM, random)                                                          \
  XX(APP, app)                                                                \

    typedef enum
    {
#define XX(code, _) UV_ ## code = UV__ ## code,
        UV_ERRNO_MAP(XX)
#undef XX
        UV_ERRNO_MAX = UV__EOF - 1
    } uv_errno_t;

    typedef enum
    {
        UV_UNKNOWN_HANDLE = 0,
#define XX(uc, lc) UV_##uc,
        UV_HANDLE_TYPE_MAP(XX)
#undef XX
        UV_FILE,
        UV_HANDLE_TYPE_MAX
    } uv_handle_type;

    typedef enum
    {
        UV_UNKNOWN_REQ = 0,
#define XX(uc, lc) UV_##uc,
        UV_REQ_TYPE_MAP(XX)
#undef XX
        UV_REQ_TYPE_PRIVATE
        UV_REQ_TYPE_MAX
    } uv_req_type;


    /* Handle types. */
    typedef struct uv_loop_s uv_loop_t;
    typedef struct uv_handle_s uv_handle_t;
    typedef struct uv_dir_s uv_dir_t;
    typedef struct uv_stream_s uv_stream_t;
    typedef struct uv_tcp_s uv_tcp_t;
    typedef struct uv_udp_s uv_udp_t;
    typedef struct uv_pipe_s uv_pipe_t;
    typedef struct uv_tty_s uv_tty_t;
    typedef struct uv_poll_s uv_poll_t;
    typedef struct uv_timer_s uv_timer_t;
    typedef struct uv_prepare_s uv_prepare_t;
    typedef struct uv_check_s uv_check_t;
    typedef struct uv_idle_s uv_idle_t;
    typedef struct uv_async_s uv_async_t;
    typedef struct uv_process_s uv_process_t;
    typedef struct uv_fs_event_s uv_fs_event_t;
    typedef struct uv_fs_poll_s uv_fs_poll_t;
    typedef struct uv_signal_s uv_signal_t;

    /* Request types. */
    typedef struct uv_req_s uv_req_t;
    typedef struct uv_getaddrinfo_s uv_getaddrinfo_t;
    typedef struct uv_getnameinfo_s uv_getnameinfo_t;
    typedef struct uv_shutdown_s uv_shutdown_t;
    typedef struct uv_write_s uv_write_t;
    typedef struct uv_connect_s uv_connect_t;
    typedef struct uv_udp_send_s uv_udp_send_t;
    typedef struct uv_fs_s uv_fs_t;
    typedef struct uv_work_s uv_work_t;
    typedef struct uv_random_s uv_random_t;
    typedef struct uv_app_s uv_app_t;
    /* None of the above. */
    typedef struct uv_env_item_s uv_env_item_t;
    typedef struct uv_cpu_info_s uv_cpu_info_t;
    typedef struct uv_interface_address_s uv_interface_address_t;
    typedef struct uv_dirent_s uv_dirent_t;
    typedef struct uv_passwd_s uv_passwd_t;
    typedef struct uv_utsname_s uv_utsname_t;
    typedef struct uv_statfs_s uv_statfs_t;

    typedef enum
    {
        UV_LOOP_BLOCK_SIGNAL = 0,
        UV_METRICS_IDLE_TIME
    } uv_loop_option;

    typedef enum
    {
        UV_RUN_DEFAULT = 0,
        UV_RUN_ONCE,
        UV_RUN_NOWAIT
    } uv_run_mode;


    UV_EXTERN unsigned int uv_version(void);
    UV_EXTERN const char* uv_version_string(void);

    typedef void* (*uv_malloc_func)(size_t size);
    typedef void* (*uv_realloc_func)(void* ptr, size_t size);
    typedef void* (*uv_calloc_func)(size_t count, size_t size);
    typedef void (*uv_free_func)(void* ptr);

    UV_EXTERN void uv_library_shutdown(void);

    UV_EXTERN int uv_replace_allocator(uv_malloc_func malloc_func,
                                       uv_realloc_func realloc_func,
                                       uv_calloc_func calloc_func,
                                       uv_free_func free_func);

    UV_EXTERN uv_loop_t* uv_default_loop(void);
    UV_EXTERN int uv_loop_init(uv_loop_t* loop, app_req_func f);
    UV_EXTERN int uv_loop_close(uv_loop_t* loop);
    UV_EXTERN void post_app_req(uv_loop_t* loop, struct uv_app_s* s);
    /*
     * NOTE:
     *  This function is DEPRECATED (to be removed after 0.12), users should
     *  allocate the loop manually and use uv_loop_init instead.
     */
    UV_EXTERN uv_loop_t* uv_loop_new(void);
    /*
     * NOTE:
     *  This function is DEPRECATED (to be removed after 0.12). Users should use
     *  uv_loop_close and free the memory manually instead.
     */
    UV_EXTERN void uv_loop_delete(uv_loop_t*);
    UV_EXTERN size_t uv_loop_size(void);
    UV_EXTERN int uv_loop_alive(const uv_loop_t* loop);
    UV_EXTERN int uv_loop_configure(uv_loop_t* loop, uv_loop_option option, ...);
    UV_EXTERN int uv_loop_fork(uv_loop_t* loop);

    UV_EXTERN int uv_run(uv_loop_t*, uv_run_mode mode);
    UV_EXTERN void uv_stop(uv_loop_t*);

    UV_EXTERN void uv_ref(uv_handle_t*);
    UV_EXTERN void uv_unref(uv_handle_t*);
    UV_EXTERN int uv_has_ref(const uv_handle_t*);

    UV_EXTERN void uv_update_time(uv_loop_t*);
    UV_EXTERN uint64_t uv_now(const uv_loop_t*);

    UV_EXTERN int uv_backend_fd(const uv_loop_t*);
    UV_EXTERN int uv_backend_timeout(const uv_loop_t*);

    typedef void (*uv_alloc_cb)(uv_handle_t* handle,
                                size_t suggested_size,
                                uv_buf_t* buf);
    typedef void (*uv_read_cb)(uv_stream_t* stream,
                               ssize_t nread,
                               const uv_buf_t* buf);
    typedef void (*uv_write_cb)(uv_write_t* req, int status);
    typedef void (*uv_connect_cb)(uv_connect_t* req, int status);
    typedef void (*uv_shutdown_cb)(uv_shutdown_t* req, int status);
    typedef void (*uv_connection_cb)(uv_stream_t* server, int status);
    typedef void (*uv_close_cb)(uv_handle_t* handle);
    typedef void (*uv_poll_cb)(uv_poll_t* handle, int status, int events);
    typedef void (*uv_timer_cb)(uv_timer_t* handle);
    typedef void (*uv_async_cb)(uv_async_t* handle);
    typedef void (*uv_prepare_cb)(uv_prepare_t* handle);
    typedef void (*uv_check_cb)(uv_check_t* handle);
    typedef void (*uv_idle_cb)(uv_idle_t* handle);
    typedef void (*uv_exit_cb)(uv_process_t*, int64_t exit_status, int term_signal);
    typedef void (*uv_walk_cb)(uv_handle_t* handle, void* arg);
    typedef void (*uv_fs_cb)(uv_fs_t* req);
    typedef void (*uv_work_cb)(uv_work_t* req);
    typedef void (*uv_after_work_cb)(uv_work_t* req, int status);
    typedef void (*uv_getaddrinfo_cb)(uv_getaddrinfo_t* req,
                                      int status,
                                      struct addrinfo* res);
    typedef void (*uv_getnameinfo_cb)(uv_getnameinfo_t* req,
                                      int status,
                                      const char* hostname,
                                      const char* service);
    typedef void (*uv_random_cb)(uv_random_t* req,
                                 int status,
                                 void* buf,
                                 size_t buflen);

    typedef struct
    {
        long tv_sec;
        long tv_nsec;
    } uv_timespec_t;


    typedef struct
    {
        uint64_t st_dev;
        uint64_t st_mode;
        uint64_t st_nlink;
        uint64_t st_uid;
        uint64_t st_gid;
        uint64_t st_rdev;
        uint64_t st_ino;
        uint64_t st_size;
        uint64_t st_blksize;
        uint64_t st_blocks;
        uint64_t st_flags;
        uint64_t st_gen;
        uv_timespec_t st_atim;
        uv_timespec_t st_mtim;
        uv_timespec_t st_ctim;
        uv_timespec_t st_birthtim;
    } uv_stat_t;


    typedef void (*uv_fs_event_cb)(uv_fs_event_t* handle,
                                   const char* filename,
                                   int events,
                                   int status);

    typedef void (*uv_fs_poll_cb)(uv_fs_poll_t* handle,
                                  int status,
                                  const uv_stat_t* prev,
                                  const uv_stat_t* curr);

    typedef void (*uv_signal_cb)(uv_signal_t* handle, int signum);


    typedef enum
    {
        UV_LEAVE_GROUP = 0,
        UV_JOIN_GROUP
    } uv_membership;


    UV_EXTERN int uv_translate_sys_error(int sys_errno);

    UV_EXTERN const char* uv_strerror(int err);
    UV_EXTERN char* uv_strerror_r(int err, char* buf, size_t buflen);

    UV_EXTERN const char* uv_err_name(int err);
    UV_EXTERN char* uv_err_name_r(int err, char* buf, size_t buflen);


#define UV_REQ_FIELDS                                                         \
  /* public */                                                                \
  void* data;                                                                 \
  /* read-only */                                                             \
  uv_req_type type;                                                           \
  /* private */                                                               \
  void* reserved[6];                                                          \
  UV_REQ_PRIVATE_FIELDS                                                       \

    /* Abstract base class of all requests. */
    struct uv_req_s
    {
        UV_REQ_FIELDS
    };


    /* Platform-specific request types. */
    UV_PRIVATE_REQ_TYPES


        UV_EXTERN int uv_shutdown(uv_shutdown_t* req,
                                  uv_stream_t* handle,
                                  uv_shutdown_cb cb);

    struct uv_shutdown_s
    {
        UV_REQ_FIELDS
            uv_stream_t* handle;
        uv_shutdown_cb cb;
        UV_SHUTDOWN_PRIVATE_FIELDS
    };


#define UV_HANDLE_FIELDS                                                      \
  /* public */                                                                \
  void* data;                                                                 \
  /* read-only */                                                             \
  uv_loop_t* loop;                                                            \
  uv_handle_type type;                                                        \
  /* private */                                                               \
  uv_close_cb close_cb;                                                       \
  void* handle_queue[2];                                                      \
  union {                                                                     \
    int fd;                                                                   \
    void* reserved[4];                                                        \
  } u;                                                                        \
  UV_HANDLE_PRIVATE_FIELDS                                                    \

    /* The abstract base class of all handles. */
    struct uv_handle_s
    {
        UV_HANDLE_FIELDS
    };

    UV_EXTERN size_t uv_handle_size(uv_handle_type type);
    UV_EXTERN uv_handle_type uv_handle_get_type(const uv_handle_t* handle);
    UV_EXTERN const char* uv_handle_type_name(uv_handle_type type);
    UV_EXTERN void* uv_handle_get_data(const uv_handle_t* handle);
    UV_EXTERN uv_loop_t* uv_handle_get_loop(const uv_handle_t* handle);
    UV_EXTERN void uv_handle_set_data(uv_handle_t* handle, void* data);

    UV_EXTERN size_t uv_req_size(uv_req_type type);
    UV_EXTERN void* uv_req_get_data(const uv_req_t* req);
    UV_EXTERN void uv_req_set_data(uv_req_t* req, void* data);
    UV_EXTERN uv_req_type uv_req_get_type(const uv_req_t* req);
    UV_EXTERN const char* uv_req_type_name(uv_req_type type);

    UV_EXTERN int uv_is_active(const uv_handle_t* handle);

    UV_EXTERN void uv_walk(uv_loop_t* loop, uv_walk_cb walk_cb, void* arg);

    /* Helpers for ad hoc debugging, no API/ABI stability guaranteed. */
    UV_EXTERN void uv_print_all_handles(uv_loop_t* loop, FILE* stream);
    UV_EXTERN void uv_print_active_handles(uv_loop_t* loop, FILE* stream);

    UV_EXTERN void uv_close(uv_handle_t* handle, uv_close_cb close_cb);

    UV_EXTERN int uv_send_buffer_size(uv_handle_t* handle, int* value);
    UV_EXTERN int uv_recv_buffer_size(uv_handle_t* handle, int* value);

    UV_EXTERN int uv_fileno(const uv_handle_t* handle, uv_os_fd_t* fd);

    UV_EXTERN uv_buf_t uv_buf_init(char* base, unsigned int len);

    UV_EXTERN int uv_pipe(uv_file fds[2], int read_flags, int write_flags);
    UV_EXTERN int uv_socketpair(int type,
                                int protocol,
                                uv_os_sock_t socket_vector[2],
                                int flags0,
                                int flags1);

#define UV_STREAM_FIELDS                                                      \
  /* number of bytes queued for writing */                                    \
  size_t write_queue_size;                                                    \
  uv_alloc_cb alloc_cb;                                                       \
  uv_read_cb read_cb;                                                         \
  /* private */                                                               \
  UV_STREAM_PRIVATE_FIELDS

    /*
     * uv_stream_t is a subclass of uv_handle_t.
     *
     * uv_stream is an abstract class.
     *
     * uv_stream_t is the parent class of uv_tcp_t, uv_pipe_t and uv_tty_t.
     */
    struct uv_stream_s
    {
        UV_HANDLE_FIELDS
            UV_STREAM_FIELDS
    };

    UV_EXTERN size_t uv_stream_get_write_queue_size(const uv_stream_t* stream);

    UV_EXTERN int uv_listen(uv_stream_t* stream, int backlog, uv_connection_cb cb);
    UV_EXTERN int uv_accept(uv_stream_t* server, uv_stream_t* client);

    UV_EXTERN int uv_read_start(uv_stream_t*,
                                uv_alloc_cb alloc_cb,
                                uv_read_cb read_cb);
    UV_EXTERN int uv_read_stop(uv_stream_t*);

    UV_EXTERN int uv_write(uv_write_t* req,
                           uv_stream_t* handle,
                           const uv_buf_t bufs[],
                           unsigned int nbufs,
                           uv_write_cb cb);
    UV_EXTERN int uv_write2(uv_write_t* req,
                            uv_stream_t* handle,
                            const uv_buf_t bufs[],
                            unsigned int nbufs,
                            uv_stream_t* send_handle,
                            uv_write_cb cb);
    UV_EXTERN int uv_try_write(uv_stream_t* handle,
                               const uv_buf_t bufs[],
                               unsigned int nbufs);
    UV_EXTERN int uv_try_write2(uv_stream_t* handle,
                                const uv_buf_t bufs[],
                                unsigned int nbufs,
                                uv_stream_t* send_handle);

    /* uv_write_t is a subclass of uv_req_t. */
    struct uv_write_s
    {
        UV_REQ_FIELDS
            uv_write_cb cb;
        uv_stream_t* send_handle; /* TODO: make private and unix-only in v2.x. */
        uv_stream_t* handle;
        UV_WRITE_PRIVATE_FIELDS
    };


    UV_EXTERN int uv_is_readable(const uv_stream_t* handle);
    UV_EXTERN int uv_is_writable(const uv_stream_t* handle);

    UV_EXTERN int uv_stream_set_blocking(uv_stream_t* handle, int blocking);

    UV_EXTERN int uv_is_closing(const uv_handle_t* handle);


    /*
     * uv_tcp_t is a subclass of uv_stream_t.
     *
     * Represents a TCP stream or TCP server.
     */
    struct uv_tcp_s
    {
        UV_HANDLE_FIELDS
            UV_STREAM_FIELDS
            UV_TCP_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_tcp_init(uv_loop_t*, uv_tcp_t* handle);
    UV_EXTERN int uv_tcp_init_ex(uv_loop_t*, uv_tcp_t* handle, unsigned int flags);
    UV_EXTERN int uv_tcp_open(uv_tcp_t* handle, uv_os_sock_t sock);
    UV_EXTERN int uv_tcp_nodelay(uv_tcp_t* handle, int enable);
    UV_EXTERN int uv_tcp_keepalive(uv_tcp_t* handle,
                                   int enable,
                                   unsigned int delay);
    UV_EXTERN int uv_tcp_simultaneous_accepts(uv_tcp_t* handle, int enable);

    enum uv_tcp_flags
    {
        /* Used with uv_tcp_bind, when an IPv6 address is used. */
        UV_TCP_IPV6ONLY = 1
    };

    UV_EXTERN int uv_tcp_bind(uv_tcp_t* handle,
                              const struct sockaddr* addr,
                              unsigned int flags);
    UV_EXTERN int uv_tcp_getsockname(const uv_tcp_t* handle,
                                     struct sockaddr* name,
                                     int* namelen);
    UV_EXTERN int uv_tcp_getpeername(const uv_tcp_t* handle,
                                     struct sockaddr* name,
                                     int* namelen);
    UV_EXTERN int uv_tcp_close_reset(uv_tcp_t* handle, uv_close_cb close_cb);
    UV_EXTERN int uv_tcp_connect(uv_connect_t* req,
                                 uv_tcp_t* handle,
                                 const struct sockaddr* addr,
                                 uv_connect_cb cb);

    /* uv_connect_t is a subclass of uv_req_t. */
    struct uv_connect_s
    {
        UV_REQ_FIELDS
            uv_connect_cb cb;
        uv_stream_t* handle;
        UV_CONNECT_PRIVATE_FIELDS
    };


    /*
     * UDP support.
     */

    enum uv_udp_flags
    {
        /* Disables dual stack mode. */
        UV_UDP_IPV6ONLY = 1,
        /*
         * Indicates message was truncated because read buffer was too small. The
         * remainder was discarded by the OS. Used in uv_udp_recv_cb.
         */
         UV_UDP_PARTIAL = 2,
         /*
          * Indicates if SO_REUSEADDR will be set when binding the handle.
          * This sets the SO_REUSEPORT socket flag on the BSDs and OS X. On other
          * Unix platforms, it sets the SO_REUSEADDR flag.  What that means is that
          * multiple threads or processes can bind to the same address without error
          * (provided they all set the flag) but only the last one to bind will receive
          * any traffic, in effect "stealing" the port from the previous listener.
          */
          UV_UDP_REUSEADDR = 4,
          /*
           * Indicates that the message was received by recvmmsg, so the buffer provided
           * must not be freed by the recv_cb callback.
           */
           UV_UDP_MMSG_CHUNK = 8,
           /*
            * Indicates that the buffer provided has been fully utilized by recvmmsg and
            * that it should now be freed by the recv_cb callback. When this flag is set
            * in uv_udp_recv_cb, nread will always be 0 and addr will always be NULL.
            */
            UV_UDP_MMSG_FREE = 16,
            /*
             * Indicates if IP_RECVERR/IPV6_RECVERR will be set when binding the handle.
             * This sets IP_RECVERR for IPv4 and IPV6_RECVERR for IPv6 UDP sockets on
             * Linux. This stops the Linux kernel from suppressing some ICMP error
             * messages and enables full ICMP error reporting for faster failover.
             * This flag is no-op on platforms other than Linux.
             */
             UV_UDP_LINUX_RECVERR = 32,
             /*
              * Indicates that recvmmsg should be used, if available.
              */
              UV_UDP_RECVMMSG = 256
    };

    typedef void (*uv_udp_send_cb)(uv_udp_send_t* req, int status);
    typedef void (*uv_udp_recv_cb)(uv_udp_t* handle,
                                   ssize_t nread,
                                   const uv_buf_t* buf,
                                   const struct sockaddr* addr,
                                   unsigned flags);

    /* uv_udp_t is a subclass of uv_handle_t. */
    struct uv_udp_s
    {
        UV_HANDLE_FIELDS
            /* read-only */
            /*
             * Number of bytes queued for sending. This field strictly shows how much
             * information is currently queued.
             */
            size_t send_queue_size;
        /*
         * Number of send requests currently in the queue awaiting to be processed.
         */
        size_t send_queue_count;
        UV_UDP_PRIVATE_FIELDS
    };

    /* uv_udp_send_t is a subclass of uv_req_t. */
    struct uv_udp_send_s
    {
        UV_REQ_FIELDS
            uv_udp_t* handle;
        uv_udp_send_cb cb;
        UV_UDP_SEND_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_udp_init(uv_loop_t*, uv_udp_t* handle);
    UV_EXTERN int uv_udp_init_ex(uv_loop_t*, uv_udp_t* handle, unsigned int flags);
    UV_EXTERN int uv_udp_open(uv_udp_t* handle, uv_os_sock_t sock);
    UV_EXTERN int uv_udp_bind(uv_udp_t* handle,
                              const struct sockaddr* addr,
                              unsigned int flags);
    UV_EXTERN int uv_udp_connect(uv_udp_t* handle, const struct sockaddr* addr);

    UV_EXTERN int uv_udp_getpeername(const uv_udp_t* handle,
                                     struct sockaddr* name,
                                     int* namelen);
    UV_EXTERN int uv_udp_getsockname(const uv_udp_t* handle,
                                     struct sockaddr* name,
                                     int* namelen);
    UV_EXTERN int uv_udp_set_membership(uv_udp_t* handle,
                                        const char* multicast_addr,
                                        const char* interface_addr,
                                        uv_membership membership);
    UV_EXTERN int uv_udp_set_source_membership(uv_udp_t* handle,
                                               const char* multicast_addr,
                                               const char* interface_addr,
                                               const char* source_addr,
                                               uv_membership membership);
    UV_EXTERN int uv_udp_set_multicast_loop(uv_udp_t* handle, int on);
    UV_EXTERN int uv_udp_set_multicast_ttl(uv_udp_t* handle, int ttl);
    UV_EXTERN int uv_udp_set_multicast_interface(uv_udp_t* handle,
                                                 const char* interface_addr);
    UV_EXTERN int uv_udp_set_broadcast(uv_udp_t* handle, int on);
    UV_EXTERN int uv_udp_set_ttl(uv_udp_t* handle, int ttl);
    UV_EXTERN int uv_udp_send(uv_udp_send_t* req,
                              uv_udp_t* handle,
                              const uv_buf_t bufs[],
                              unsigned int nbufs,
                              const struct sockaddr* addr,
                              uv_udp_send_cb send_cb);
    UV_EXTERN int uv_udp_try_send(uv_udp_t* handle,
                                  const uv_buf_t bufs[],
                                  unsigned int nbufs,
                                  const struct sockaddr* addr);
    UV_EXTERN int uv_udp_recv_start(uv_udp_t* handle,
                                    uv_alloc_cb alloc_cb,
                                    uv_udp_recv_cb recv_cb);
    UV_EXTERN int uv_udp_using_recvmmsg(const uv_udp_t* handle);
    UV_EXTERN int uv_udp_recv_stop(uv_udp_t* handle);
    UV_EXTERN size_t uv_udp_get_send_queue_size(const uv_udp_t* handle);
    UV_EXTERN size_t uv_udp_get_send_queue_count(const uv_udp_t* handle);


    /*
     * uv_tty_t is a subclass of uv_stream_t.
     *
     * Representing a stream for the console.
     */
    struct uv_tty_s
    {
        UV_HANDLE_FIELDS
            UV_STREAM_FIELDS
            UV_TTY_PRIVATE_FIELDS
    };

    typedef enum
    {
        /* Initial/normal terminal mode */
        UV_TTY_MODE_NORMAL,
        /* Raw input mode (On Windows, ENABLE_WINDOW_INPUT is also enabled) */
        UV_TTY_MODE_RAW,
        /* Binary-safe I/O mode for IPC (Unix-only) */
        UV_TTY_MODE_IO
    } uv_tty_mode_t;

    typedef enum
    {
        /*
         * The console supports handling of virtual terminal sequences
         * (Windows10 new console, ConEmu)
         */
        UV_TTY_SUPPORTED,
        /* The console cannot process the virtual terminal sequence.  (Legacy
         * console)
         */
         UV_TTY_UNSUPPORTED
    } uv_tty_vtermstate_t;


    UV_EXTERN int uv_tty_init(uv_loop_t*, uv_tty_t*, uv_file fd, int readable);
    UV_EXTERN int uv_tty_set_mode(uv_tty_t*, uv_tty_mode_t mode);
    UV_EXTERN int uv_tty_reset_mode(void);
    UV_EXTERN int uv_tty_get_winsize(uv_tty_t*, int* width, int* height);
    UV_EXTERN void uv_tty_set_vterm_state(uv_tty_vtermstate_t state);
    UV_EXTERN int uv_tty_get_vterm_state(uv_tty_vtermstate_t* state);

#ifdef __cplusplus
    extern "C++" {

        inline int uv_tty_set_mode(uv_tty_t* handle, int mode) {
            return uv_tty_set_mode(handle, static_cast<uv_tty_mode_t>(mode));
        }

    }
#endif

    UV_EXTERN uv_handle_type uv_guess_handle(uv_file file);

    /*
     * uv_pipe_t is a subclass of uv_stream_t.
     *
     * Representing a pipe stream or pipe server. On Windows this is a Named
     * Pipe. On Unix this is a Unix domain socket.
     */
    struct uv_pipe_s
    {
        UV_HANDLE_FIELDS
            UV_STREAM_FIELDS
            int ipc; /* non-zero if this pipe is used for passing handles */
        UV_PIPE_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_pipe_init(uv_loop_t*, uv_pipe_t* handle, int ipc);
    UV_EXTERN int uv_pipe_open(uv_pipe_t*, uv_file file);
    UV_EXTERN int uv_pipe_bind(uv_pipe_t* handle, const char* name);
    UV_EXTERN void uv_pipe_connect(uv_connect_t* req,
                                   uv_pipe_t* handle,
                                   const char* name,
                                   uv_connect_cb cb);
    UV_EXTERN int uv_pipe_getsockname(const uv_pipe_t* handle,
                                      char* buffer,
                                      size_t* size);
    UV_EXTERN int uv_pipe_getpeername(const uv_pipe_t* handle,
                                      char* buffer,
                                      size_t* size);
    UV_EXTERN void uv_pipe_pending_instances(uv_pipe_t* handle, int count);
    UV_EXTERN int uv_pipe_pending_count(uv_pipe_t* handle);
    UV_EXTERN uv_handle_type uv_pipe_pending_type(uv_pipe_t* handle);
    UV_EXTERN int uv_pipe_chmod(uv_pipe_t* handle, int flags);


    struct uv_poll_s
    {
        UV_HANDLE_FIELDS
            uv_poll_cb poll_cb;
        UV_POLL_PRIVATE_FIELDS
    };

    enum uv_poll_event
    {
        UV_READABLE = 1,
        UV_WRITABLE = 2,
        UV_DISCONNECT = 4,
        UV_PRIORITIZED = 8
    };

    UV_EXTERN int uv_poll_init(uv_loop_t* loop, uv_poll_t* handle, int fd);
    UV_EXTERN int uv_poll_init_socket(uv_loop_t* loop,
                                      uv_poll_t* handle,
                                      uv_os_sock_t socket);
    UV_EXTERN int uv_poll_start(uv_poll_t* handle, int events, uv_poll_cb cb);
    UV_EXTERN int uv_poll_stop(uv_poll_t* handle);


    struct uv_prepare_s
    {
        UV_HANDLE_FIELDS
            UV_PREPARE_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_prepare_init(uv_loop_t*, uv_prepare_t* prepare);
    UV_EXTERN int uv_prepare_start(uv_prepare_t* prepare, uv_prepare_cb cb);
    UV_EXTERN int uv_prepare_stop(uv_prepare_t* prepare);


    struct uv_check_s
    {
        UV_HANDLE_FIELDS
            UV_CHECK_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_check_init(uv_loop_t*, uv_check_t* check);
    UV_EXTERN int uv_check_start(uv_check_t* check, uv_check_cb cb);
    UV_EXTERN int uv_check_stop(uv_check_t* check);


    struct uv_idle_s
    {
        UV_HANDLE_FIELDS
            UV_IDLE_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_idle_init(uv_loop_t*, uv_idle_t* idle);
    UV_EXTERN int uv_idle_start(uv_idle_t* idle, uv_idle_cb cb);
    UV_EXTERN int uv_idle_stop(uv_idle_t* idle);


    struct uv_async_s
    {
        UV_HANDLE_FIELDS
            UV_ASYNC_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_async_init(uv_loop_t*,
                                uv_async_t* async,
                                uv_async_cb async_cb);
    UV_EXTERN int uv_async_send(uv_async_t* async);


    /*
     * uv_timer_t is a subclass of uv_handle_t.
     *
     * Used to get woken up at a specified time in the future.
     */
    struct uv_timer_s
    {
        UV_HANDLE_FIELDS
            UV_TIMER_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_timer_init(uv_loop_t*, uv_timer_t* handle);
    UV_EXTERN int uv_timer_start(uv_timer_t* handle,
                                 uv_timer_cb cb,
                                 uint64_t timeout,
                                 uint64_t repeat);
    UV_EXTERN int uv_timer_stop(uv_timer_t* handle);
    UV_EXTERN int uv_timer_again(uv_timer_t* handle);
    UV_EXTERN void uv_timer_set_repeat(uv_timer_t* handle, uint64_t repeat);
    UV_EXTERN uint64_t uv_timer_get_repeat(const uv_timer_t* handle);
    UV_EXTERN uint64_t uv_timer_get_due_in(const uv_timer_t* handle);


    /*
     * uv_getaddrinfo_t is a subclass of uv_req_t.
     *
     * Request object for uv_getaddrinfo.
     */
    struct uv_getaddrinfo_s
    {
        UV_REQ_FIELDS
            /* read-only */
            uv_loop_t* loop;
        /* struct addrinfo* addrinfo is marked as private, but it really isn't. */
        UV_GETADDRINFO_PRIVATE_FIELDS
    };


    UV_EXTERN int uv_getaddrinfo(uv_loop_t* loop,
                                 uv_getaddrinfo_t* req,
                                 uv_getaddrinfo_cb getaddrinfo_cb,
                                 const char* node,
                                 const char* service,
                                 const struct addrinfo* hints);
    UV_EXTERN void uv_freeaddrinfo(struct addrinfo* ai);


    /*
    * uv_getnameinfo_t is a subclass of uv_req_t.
    *
    * Request object for uv_getnameinfo.
    */
    struct uv_getnameinfo_s
    {
        UV_REQ_FIELDS
            /* read-only */
            uv_loop_t* loop;
        /* host and service are marked as private, but they really aren't. */
        UV_GETNAMEINFO_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_getnameinfo(uv_loop_t* loop,
                                 uv_getnameinfo_t* req,
                                 uv_getnameinfo_cb getnameinfo_cb,
                                 const struct sockaddr* addr,
                                 int flags);


    /* uv_spawn() options. */
    typedef enum
    {
        UV_IGNORE = 0x00,
        UV_CREATE_PIPE = 0x01,
        UV_INHERIT_FD = 0x02,
        UV_INHERIT_STREAM = 0x04,

        /*
         * When UV_CREATE_PIPE is specified, UV_READABLE_PIPE and UV_WRITABLE_PIPE
         * determine the direction of flow, from the child process' perspective. Both
         * flags may be specified to create a duplex data stream.
         */
         UV_READABLE_PIPE = 0x10,
         UV_WRITABLE_PIPE = 0x20,

         /*
          * When UV_CREATE_PIPE is specified, specifying UV_NONBLOCK_PIPE opens the
          * handle in non-blocking mode in the child. This may cause loss of data,
          * if the child is not designed to handle to encounter this mode,
          * but can also be significantly more efficient.
          */
          UV_NONBLOCK_PIPE = 0x40,
          UV_OVERLAPPED_PIPE = 0x40 /* old name, for compatibility */
    } uv_stdio_flags;

    typedef struct uv_stdio_container_s
    {
        uv_stdio_flags flags;

        union
        {
            uv_stream_t* stream;
            int fd;
        } data;
    } uv_stdio_container_t;

    typedef struct uv_process_options_s
    {
        uv_exit_cb exit_cb; /* Called after the process exits. */
        const char* file;   /* Path to program to execute. */
        /*
         * Command line arguments. args[0] should be the path to the program. On
         * Windows this uses CreateProcess which concatenates the arguments into a
         * string this can cause some strange errors. See the note at
         * windows_verbatim_arguments.
         */
        char** args;
        /*
         * This will be set as the environ variable in the subprocess. If this is
         * NULL then the parents environ will be used.
         */
        char** env;
        /*
         * If non-null this represents a directory the subprocess should execute
         * in. Stands for current working directory.
         */
        const char* cwd;
        /*
         * Various flags that control how uv_spawn() behaves. See the definition of
         * `enum uv_process_flags` below.
         */
        unsigned int flags;
        /*
         * The `stdio` field points to an array of uv_stdio_container_t structs that
         * describe the file descriptors that will be made available to the child
         * process. The convention is that stdio[0] points to stdin, fd 1 is used for
         * stdout, and fd 2 is stderr.
         *
         * Note that on windows file descriptors greater than 2 are available to the
         * child process only if the child processes uses the MSVCRT runtime.
         */
        int stdio_count;
        uv_stdio_container_t* stdio;
        /*
         * Libuv can change the child process' user/group id. This happens only when
         * the appropriate bits are set in the flags fields. This is not supported on
         * windows; uv_spawn() will fail and set the error to UV_ENOTSUP.
         */
        uv_uid_t uid;
        uv_gid_t gid;
    } uv_process_options_t;

    /*
     * These are the flags that can be used for the uv_process_options.flags field.
     */
    enum uv_process_flags
    {
        /*
         * Set the child process' user id. The user id is supplied in the `uid` field
         * of the options struct. This does not work on windows; setting this flag
         * will cause uv_spawn() to fail.
         */
        UV_PROCESS_SETUID = (1 << 0),
        /*
         * Set the child process' group id. The user id is supplied in the `gid`
         * field of the options struct. This does not work on windows; setting this
         * flag will cause uv_spawn() to fail.
         */
         UV_PROCESS_SETGID = (1 << 1),
         /*
          * Do not wrap any arguments in quotes, or perform any other escaping, when
          * converting the argument list into a command line string. This option is
          * only meaningful on Windows systems. On Unix it is silently ignored.
          */
          UV_PROCESS_WINDOWS_VERBATIM_ARGUMENTS = (1 << 2),
          /*
           * Spawn the child process in a detached state - this will make it a process
           * group leader, and will effectively enable the child to keep running after
           * the parent exits.  Note that the child process will still keep the
           * parent's event loop alive unless the parent process calls uv_unref() on
           * the child's process handle.
           */
           UV_PROCESS_DETACHED = (1 << 3),
           /*
            * Hide the subprocess window that would normally be created. This option is
            * only meaningful on Windows systems. On Unix it is silently ignored.
            */
            UV_PROCESS_WINDOWS_HIDE = (1 << 4),
            /*
             * Hide the subprocess console window that would normally be created. This
             * option is only meaningful on Windows systems. On Unix it is silently
             * ignored.
             */
             UV_PROCESS_WINDOWS_HIDE_CONSOLE = (1 << 5),
             /*
              * Hide the subprocess GUI window that would normally be created. This
              * option is only meaningful on Windows systems. On Unix it is silently
              * ignored.
              */
              UV_PROCESS_WINDOWS_HIDE_GUI = (1 << 6)
    };

    /*
     * uv_process_t is a subclass of uv_handle_t.
     */
    struct uv_process_s
    {
        UV_HANDLE_FIELDS
            uv_exit_cb exit_cb;
        int pid;
        UV_PROCESS_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_spawn(uv_loop_t* loop,
                           uv_process_t* handle,
                           const uv_process_options_t* options);
    UV_EXTERN int uv_process_kill(uv_process_t*, int signum);
    UV_EXTERN int uv_kill(int pid, int signum);
    UV_EXTERN uv_pid_t uv_process_get_pid(const uv_process_t*);


    /*
     * uv_work_t is a subclass of uv_req_t.
     */
    struct uv_work_s
    {
        UV_REQ_FIELDS
            uv_loop_t* loop;
        uv_work_cb work_cb;
        uv_after_work_cb after_work_cb;
        UV_WORK_PRIVATE_FIELDS
    };

    struct uv_app_s
    {
        UV_REQ_FIELDS
            uv_loop_t* loop;
    };

    UV_EXTERN int uv_queue_work(uv_loop_t* loop,
                                uv_work_t* req,
                                uv_work_cb work_cb,
                                uv_after_work_cb after_work_cb);

    UV_EXTERN int uv_cancel(uv_req_t* req);


    struct uv_cpu_times_s
    {
        uint64_t user; /* milliseconds */
        uint64_t nice; /* milliseconds */
        uint64_t sys; /* milliseconds */
        uint64_t idle; /* milliseconds */
        uint64_t irq; /* milliseconds */
    };

    struct uv_cpu_info_s
    {
        char* model;
        int speed;
        struct uv_cpu_times_s cpu_times;
    };

    struct uv_interface_address_s
    {
        char* name;
        char phys_addr[6];
        int is_internal;
        union
        {
            struct sockaddr_in address4;
            struct sockaddr_in6 address6;
        } address;
        union
        {
            struct sockaddr_in netmask4;
            struct sockaddr_in6 netmask6;
        } netmask;
    };

    struct uv_passwd_s
    {
        char* username;
        long uid;
        long gid;
        char* shell;
        char* homedir;
    };

    struct uv_utsname_s
    {
        char sysname[256];
        char release[256];
        char version[256];
        char machine[256];
        /* This struct does not contain the nodename and domainname fields present in
           the utsname type. domainname is a GNU extension. Both fields are referred
           to as meaningless in the docs. */
    };

    struct uv_statfs_s
    {
        uint64_t f_type;
        uint64_t f_bsize;
        uint64_t f_blocks;
        uint64_t f_bfree;
        uint64_t f_bavail;
        uint64_t f_files;
        uint64_t f_ffree;
        uint64_t f_spare[4];
    };

    typedef enum
    {
        UV_DIRENT_UNKNOWN,
        UV_DIRENT_FILE,
        UV_DIRENT_DIR,
        UV_DIRENT_LINK,
        UV_DIRENT_FIFO,
        UV_DIRENT_SOCKET,
        UV_DIRENT_CHAR,
        UV_DIRENT_BLOCK
    } uv_dirent_type_t;

    struct uv_dirent_s
    {
        const char* name;
        uv_dirent_type_t type;
    };

    UV_EXTERN char** uv_setup_args(int argc, char** argv);
    UV_EXTERN int uv_get_process_title(char* buffer, size_t size);
    UV_EXTERN int uv_set_process_title(const char* title);
    UV_EXTERN int uv_resident_set_memory(size_t* rss);
    UV_EXTERN int uv_uptime(double* uptime);
    UV_EXTERN uv_os_fd_t uv_get_osfhandle(int fd);
    UV_EXTERN int uv_open_osfhandle(uv_os_fd_t os_fd);

    typedef struct
    {
        long tv_sec;
        long tv_usec;
    } uv_timeval_t;

    typedef struct
    {
        int64_t tv_sec;
        int32_t tv_usec;
    } uv_timeval64_t;

    typedef struct
    {
        uv_timeval_t ru_utime; /* user CPU time used */
        uv_timeval_t ru_stime; /* system CPU time used */
        uint64_t ru_maxrss;    /* maximum resident set size */
        uint64_t ru_ixrss;     /* integral shared memory size */
        uint64_t ru_idrss;     /* integral unshared data size */
        uint64_t ru_isrss;     /* integral unshared stack size */
        uint64_t ru_minflt;    /* page reclaims (soft page faults) */
        uint64_t ru_majflt;    /* page faults (hard page faults) */
        uint64_t ru_nswap;     /* swaps */
        uint64_t ru_inblock;   /* block input operations */
        uint64_t ru_oublock;   /* block output operations */
        uint64_t ru_msgsnd;    /* IPC messages sent */
        uint64_t ru_msgrcv;    /* IPC messages received */
        uint64_t ru_nsignals;  /* signals received */
        uint64_t ru_nvcsw;     /* voluntary context switches */
        uint64_t ru_nivcsw;    /* involuntary context switches */
    } uv_rusage_t;

    UV_EXTERN int uv_getrusage(uv_rusage_t* rusage);

    UV_EXTERN int uv_os_homedir(char* buffer, size_t* size);
    UV_EXTERN int uv_os_tmpdir(char* buffer, size_t* size);
    UV_EXTERN int uv_os_get_passwd(uv_passwd_t* pwd);
    UV_EXTERN void uv_os_free_passwd(uv_passwd_t* pwd);
    UV_EXTERN uv_pid_t uv_os_getpid(void);
    UV_EXTERN uv_pid_t uv_os_getppid(void);

#if defined(__PASE__)
    /* On IBM i PASE, the highest process priority is -10 */
# define UV_PRIORITY_LOW 39          /* RUNPTY(99) */
# define UV_PRIORITY_BELOW_NORMAL 15 /* RUNPTY(50) */
# define UV_PRIORITY_NORMAL 0        /* RUNPTY(20) */
# define UV_PRIORITY_ABOVE_NORMAL -4 /* RUNTY(12) */
# define UV_PRIORITY_HIGH -7         /* RUNPTY(6) */
# define UV_PRIORITY_HIGHEST -10     /* RUNPTY(1) */
#else
# define UV_PRIORITY_LOW 19
# define UV_PRIORITY_BELOW_NORMAL 10
# define UV_PRIORITY_NORMAL 0
# define UV_PRIORITY_ABOVE_NORMAL -7
# define UV_PRIORITY_HIGH -14
# define UV_PRIORITY_HIGHEST -20
#endif

    UV_EXTERN int uv_os_getpriority(uv_pid_t pid, int* priority);
    UV_EXTERN int uv_os_setpriority(uv_pid_t pid, int priority);

    UV_EXTERN int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count);
    UV_EXTERN void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count);

    UV_EXTERN int uv_interface_addresses(uv_interface_address_t** addresses,
                                         int* count);
    UV_EXTERN void uv_free_interface_addresses(uv_interface_address_t* addresses,
                                               int count);

    struct uv_env_item_s
    {
        char* name;
        char* value;
    };

    UV_EXTERN int uv_os_environ(uv_env_item_t** envitems, int* count);
    UV_EXTERN void uv_os_free_environ(uv_env_item_t* envitems, int count);
    UV_EXTERN int uv_os_getenv(const char* name, char* buffer, size_t* size);
    UV_EXTERN int uv_os_setenv(const char* name, const char* value);
    UV_EXTERN int uv_os_unsetenv(const char* name);

#ifdef MAXHOSTNAMELEN
# define UV_MAXHOSTNAMESIZE (MAXHOSTNAMELEN + 1)
#else
    /*
      Fallback for the maximum hostname size, including the null terminator. The
      Windows gethostname() documentation states that 256 bytes will always be
      large enough to hold the null-terminated hostname.
    */
# define UV_MAXHOSTNAMESIZE 256
#endif

    UV_EXTERN int uv_os_gethostname(char* buffer, size_t* size);

    UV_EXTERN int uv_os_uname(uv_utsname_t* buffer);

    UV_EXTERN uint64_t uv_metrics_idle_time(uv_loop_t* loop);

    typedef enum
    {
        UV_FS_UNKNOWN = -1,
        UV_FS_CUSTOM,
        UV_FS_OPEN,
        UV_FS_CLOSE,
        UV_FS_READ,
        UV_FS_WRITE,
        UV_FS_SENDFILE,
        UV_FS_STAT,
        UV_FS_LSTAT,
        UV_FS_FSTAT,
        UV_FS_FTRUNCATE,
        UV_FS_UTIME,
        UV_FS_FUTIME,
        UV_FS_ACCESS,
        UV_FS_CHMOD,
        UV_FS_FCHMOD,
        UV_FS_FSYNC,
        UV_FS_FDATASYNC,
        UV_FS_UNLINK,
        UV_FS_RMDIR,
        UV_FS_MKDIR,
        UV_FS_MKDTEMP,
        UV_FS_RENAME,
        UV_FS_SCANDIR,
        UV_FS_LINK,
        UV_FS_SYMLINK,
        UV_FS_READLINK,
        UV_FS_CHOWN,
        UV_FS_FCHOWN,
        UV_FS_REALPATH,
        UV_FS_COPYFILE,
        UV_FS_LCHOWN,
        UV_FS_OPENDIR,
        UV_FS_READDIR,
        UV_FS_CLOSEDIR,
        UV_FS_STATFS,
        UV_FS_MKSTEMP,
        UV_FS_LUTIME
    } uv_fs_type;

    struct uv_dir_s
    {
        uv_dirent_t* dirents;
        size_t nentries;
        void* reserved[4];
        UV_DIR_PRIVATE_FIELDS
    };

    /* uv_fs_t is a subclass of uv_req_t. */
    struct uv_fs_s
    {
        UV_REQ_FIELDS
            uv_fs_type fs_type;
        uv_loop_t* loop;
        uv_fs_cb cb;
        ssize_t result;
        void* ptr;
        const char* path;
        uv_stat_t statbuf;  /* Stores the result of uv_fs_stat() and uv_fs_fstat(). */
        UV_FS_PRIVATE_FIELDS
    };

    UV_EXTERN uv_fs_type uv_fs_get_type(const uv_fs_t*);
    UV_EXTERN ssize_t uv_fs_get_result(const uv_fs_t*);
    UV_EXTERN int uv_fs_get_system_error(const uv_fs_t*);
    UV_EXTERN void* uv_fs_get_ptr(const uv_fs_t*);
    UV_EXTERN const char* uv_fs_get_path(const uv_fs_t*);
    UV_EXTERN uv_stat_t* uv_fs_get_statbuf(uv_fs_t*);

    UV_EXTERN void uv_fs_req_cleanup(uv_fs_t* req);
    UV_EXTERN int uv_fs_close(uv_loop_t* loop,
                              uv_fs_t* req,
                              uv_file file,
                              uv_fs_cb cb);
    UV_EXTERN int uv_fs_open(uv_loop_t* loop,
                             uv_fs_t* req,
                             const char* path,
                             int flags,
                             int mode,
                             uv_fs_cb cb);
    UV_EXTERN int uv_fs_read(uv_loop_t* loop,
                             uv_fs_t* req,
                             uv_file file,
                             const uv_buf_t bufs[],
                             unsigned int nbufs,
                             int64_t offset,
                             uv_fs_cb cb);
    UV_EXTERN int uv_fs_unlink(uv_loop_t* loop,
                               uv_fs_t* req,
                               const char* path,
                               uv_fs_cb cb);
    UV_EXTERN int uv_fs_write(uv_loop_t* loop,
                              uv_fs_t* req,
                              uv_file file,
                              const uv_buf_t bufs[],
                              unsigned int nbufs,
                              int64_t offset,
                              uv_fs_cb cb);
    /*
     * This flag can be used with uv_fs_copyfile() to return an error if the
     * destination already exists.
     */
#define UV_FS_COPYFILE_EXCL   0x0001

     /*
      * This flag can be used with uv_fs_copyfile() to attempt to create a reflink.
      * If copy-on-write is not supported, a fallback copy mechanism is used.
      */
#define UV_FS_COPYFILE_FICLONE 0x0002

      /*
       * This flag can be used with uv_fs_copyfile() to attempt to create a reflink.
       * If copy-on-write is not supported, an error is returned.
       */
#define UV_FS_COPYFILE_FICLONE_FORCE 0x0004

    UV_EXTERN int uv_fs_copyfile(uv_loop_t* loop,
                                 uv_fs_t* req,
                                 const char* path,
                                 const char* new_path,
                                 int flags,
                                 uv_fs_cb cb);
    UV_EXTERN int uv_fs_mkdir(uv_loop_t* loop,
                              uv_fs_t* req,
                              const char* path,
                              int mode,
                              uv_fs_cb cb);
    UV_EXTERN int uv_fs_mkdtemp(uv_loop_t* loop,
                                uv_fs_t* req,
                                const char* tpl,
                                uv_fs_cb cb);
    UV_EXTERN int uv_fs_mkstemp(uv_loop_t* loop,
                                uv_fs_t* req,
                                const char* tpl,
                                uv_fs_cb cb);
    UV_EXTERN int uv_fs_rmdir(uv_loop_t* loop,
                              uv_fs_t* req,
                              const char* path,
                              uv_fs_cb cb);
    UV_EXTERN int uv_fs_scandir(uv_loop_t* loop,
                                uv_fs_t* req,
                                const char* path,
                                int flags,
                                uv_fs_cb cb);
    UV_EXTERN int uv_fs_scandir_next(uv_fs_t* req,
                                     uv_dirent_t* ent);
    UV_EXTERN int uv_fs_opendir(uv_loop_t* loop,
                                uv_fs_t* req,
                                const char* path,
                                uv_fs_cb cb);
    UV_EXTERN int uv_fs_readdir(uv_loop_t* loop,
                                uv_fs_t* req,
                                uv_dir_t* dir,
                                uv_fs_cb cb);
    UV_EXTERN int uv_fs_closedir(uv_loop_t* loop,
                                 uv_fs_t* req,
                                 uv_dir_t* dir,
                                 uv_fs_cb cb);
    UV_EXTERN int uv_fs_stat(uv_loop_t* loop,
                             uv_fs_t* req,
                             const char* path,
                             uv_fs_cb cb);
    UV_EXTERN int uv_fs_fstat(uv_loop_t* loop,
                              uv_fs_t* req,
                              uv_file file,
                              uv_fs_cb cb);
    UV_EXTERN int uv_fs_rename(uv_loop_t* loop,
                               uv_fs_t* req,
                               const char* path,
                               const char* new_path,
                               uv_fs_cb cb);
    UV_EXTERN int uv_fs_fsync(uv_loop_t* loop,
                              uv_fs_t* req,
                              uv_file file,
                              uv_fs_cb cb);
    UV_EXTERN int uv_fs_fdatasync(uv_loop_t* loop,
                                  uv_fs_t* req,
                                  uv_file file,
                                  uv_fs_cb cb);
    UV_EXTERN int uv_fs_ftruncate(uv_loop_t* loop,
                                  uv_fs_t* req,
                                  uv_file file,
                                  int64_t offset,
                                  uv_fs_cb cb);
    UV_EXTERN int uv_fs_sendfile(uv_loop_t* loop,
                                 uv_fs_t* req,
                                 uv_file out_fd,
                                 uv_file in_fd,
                                 int64_t in_offset,
                                 size_t length,
                                 uv_fs_cb cb);
    UV_EXTERN int uv_fs_access(uv_loop_t* loop,
                               uv_fs_t* req,
                               const char* path,
                               int mode,
                               uv_fs_cb cb);
    UV_EXTERN int uv_fs_chmod(uv_loop_t* loop,
                              uv_fs_t* req,
                              const char* path,
                              int mode,
                              uv_fs_cb cb);
    UV_EXTERN int uv_fs_utime(uv_loop_t* loop,
                              uv_fs_t* req,
                              const char* path,
                              double atime,
                              double mtime,
                              uv_fs_cb cb);
    UV_EXTERN int uv_fs_futime(uv_loop_t* loop,
                               uv_fs_t* req,
                               uv_file file,
                               double atime,
                               double mtime,
                               uv_fs_cb cb);
    UV_EXTERN int uv_fs_lutime(uv_loop_t* loop,
                               uv_fs_t* req,
                               const char* path,
                               double atime,
                               double mtime,
                               uv_fs_cb cb);
    UV_EXTERN int uv_fs_lstat(uv_loop_t* loop,
                              uv_fs_t* req,
                              const char* path,
                              uv_fs_cb cb);
    UV_EXTERN int uv_fs_link(uv_loop_t* loop,
                             uv_fs_t* req,
                             const char* path,
                             const char* new_path,
                             uv_fs_cb cb);

    /*
     * This flag can be used with uv_fs_symlink() on Windows to specify whether
     * path argument points to a directory.
     */
#define UV_FS_SYMLINK_DIR          0x0001

     /*
      * This flag can be used with uv_fs_symlink() on Windows to specify whether
      * the symlink is to be created using junction points.
      */
#define UV_FS_SYMLINK_JUNCTION     0x0002

    UV_EXTERN int uv_fs_symlink(uv_loop_t* loop,
                                uv_fs_t* req,
                                const char* path,
                                const char* new_path,
                                int flags,
                                uv_fs_cb cb);
    UV_EXTERN int uv_fs_readlink(uv_loop_t* loop,
                                 uv_fs_t* req,
                                 const char* path,
                                 uv_fs_cb cb);
    UV_EXTERN int uv_fs_realpath(uv_loop_t* loop,
                                 uv_fs_t* req,
                                 const char* path,
                                 uv_fs_cb cb);
    UV_EXTERN int uv_fs_fchmod(uv_loop_t* loop,
                               uv_fs_t* req,
                               uv_file file,
                               int mode,
                               uv_fs_cb cb);
    UV_EXTERN int uv_fs_chown(uv_loop_t* loop,
                              uv_fs_t* req,
                              const char* path,
                              uv_uid_t uid,
                              uv_gid_t gid,
                              uv_fs_cb cb);
    UV_EXTERN int uv_fs_fchown(uv_loop_t* loop,
                               uv_fs_t* req,
                               uv_file file,
                               uv_uid_t uid,
                               uv_gid_t gid,
                               uv_fs_cb cb);
    UV_EXTERN int uv_fs_lchown(uv_loop_t* loop,
                               uv_fs_t* req,
                               const char* path,
                               uv_uid_t uid,
                               uv_gid_t gid,
                               uv_fs_cb cb);
    UV_EXTERN int uv_fs_statfs(uv_loop_t* loop,
                               uv_fs_t* req,
                               const char* path,
                               uv_fs_cb cb);


    enum uv_fs_event
    {
        UV_RENAME = 1,
        UV_CHANGE = 2
    };


    struct uv_fs_event_s
    {
        UV_HANDLE_FIELDS
            /* private */
            char* path;
        UV_FS_EVENT_PRIVATE_FIELDS
    };


    /*
     * uv_fs_stat() based polling file watcher.
     */
    struct uv_fs_poll_s
    {
        UV_HANDLE_FIELDS
            /* Private, don't touch. */
            void* poll_ctx;
    };

    UV_EXTERN int uv_fs_poll_init(uv_loop_t* loop, uv_fs_poll_t* handle);
    UV_EXTERN int uv_fs_poll_start(uv_fs_poll_t* handle,
                                   uv_fs_poll_cb poll_cb,
                                   const char* path,
                                   unsigned int interval);
    UV_EXTERN int uv_fs_poll_stop(uv_fs_poll_t* handle);
    UV_EXTERN int uv_fs_poll_getpath(uv_fs_poll_t* handle,
                                     char* buffer,
                                     size_t* size);


    struct uv_signal_s
    {
        UV_HANDLE_FIELDS
            uv_signal_cb signal_cb;
        int signum;
        UV_SIGNAL_PRIVATE_FIELDS
    };

    UV_EXTERN int uv_signal_init(uv_loop_t* loop, uv_signal_t* handle);
    UV_EXTERN int uv_signal_start(uv_signal_t* handle,
                                  uv_signal_cb signal_cb,
                                  int signum);
    UV_EXTERN int uv_signal_start_oneshot(uv_signal_t* handle,
                                          uv_signal_cb signal_cb,
                                          int signum);
    UV_EXTERN int uv_signal_stop(uv_signal_t* handle);

    UV_EXTERN void uv_loadavg(double avg[3]);


    /*
     * Flags to be passed to uv_fs_event_start().
     */
    enum uv_fs_event_flags
    {
        /*
         * By default, if the fs event watcher is given a directory name, we will
         * watch for all events in that directory. This flags overrides this behavior
         * and makes fs_event report only changes to the directory entry itself. This
         * flag does not affect individual files watched.
         * This flag is currently not implemented yet on any backend.
         */
        UV_FS_EVENT_WATCH_ENTRY = 1,

        /*
         * By default uv_fs_event will try to use a kernel interface such as inotify
         * or kqueue to detect events. This may not work on remote filesystems such
         * as NFS mounts. This flag makes fs_event fall back to calling stat() on a
         * regular interval.
         * This flag is currently not implemented yet on any backend.
         */
         UV_FS_EVENT_STAT = 2,

         /*
          * By default, event watcher, when watching directory, is not registering
          * (is ignoring) changes in it's subdirectories.
          * This flag will override this behaviour on platforms that support it.
          */
          UV_FS_EVENT_RECURSIVE = 4
    };


    UV_EXTERN int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle);
    UV_EXTERN int uv_fs_event_start(uv_fs_event_t* handle,
                                    uv_fs_event_cb cb,
                                    const char* path,
                                    unsigned int flags);
    UV_EXTERN int uv_fs_event_stop(uv_fs_event_t* handle);
    UV_EXTERN int uv_fs_event_getpath(uv_fs_event_t* handle,
                                      char* buffer,
                                      size_t* size);

    UV_EXTERN int uv_ip4_addr(const char* ip, int port, struct sockaddr_in* addr);
    UV_EXTERN int uv_ip6_addr(const char* ip, int port, struct sockaddr_in6* addr);

    UV_EXTERN int uv_ip4_name(const struct sockaddr_in* src, char* dst, size_t size);
    UV_EXTERN int uv_ip6_name(const struct sockaddr_in6* src, char* dst, size_t size);
    UV_EXTERN int uv_ip_name(const struct sockaddr* src, char* dst, size_t size);

    UV_EXTERN int uv_inet_ntop(int af, const void* src, char* dst, size_t size);
    UV_EXTERN int uv_inet_pton(int af, const char* src, void* dst);


    struct uv_random_s
    {
        UV_REQ_FIELDS
            /* read-only */
            uv_loop_t* loop;
        /* private */
        int status;
        void* buf;
        size_t buflen;
        uv_random_cb cb;
        struct uv__work work_req;
    };

    UV_EXTERN int uv_random(uv_loop_t* loop,
                            uv_random_t* req,
                            void* buf,
                            size_t buflen,
                            unsigned flags,  /* For future extension; must be 0. */
                            uv_random_cb cb);

#if defined(IF_NAMESIZE)
# define UV_IF_NAMESIZE (IF_NAMESIZE + 1)
#elif defined(IFNAMSIZ)
# define UV_IF_NAMESIZE (IFNAMSIZ + 1)
#else
# define UV_IF_NAMESIZE (16 + 1)
#endif

    UV_EXTERN int uv_if_indextoname(unsigned int ifindex,
                                    char* buffer,
                                    size_t* size);
    UV_EXTERN int uv_if_indextoiid(unsigned int ifindex,
                                   char* buffer,
                                   size_t* size);

    UV_EXTERN int uv_exepath(char* buffer, size_t* size);

    UV_EXTERN int uv_cwd(char* buffer, size_t* size);

    UV_EXTERN int uv_chdir(const char* dir);

    UV_EXTERN uint64_t uv_get_free_memory(void);
    UV_EXTERN uint64_t uv_get_total_memory(void);
    UV_EXTERN uint64_t uv_get_constrained_memory(void);

    UV_EXTERN uint64_t uv_hrtime(void);
    UV_EXTERN void uv_sleep(unsigned int msec);

    UV_EXTERN void uv_disable_stdio_inheritance(void);

    UV_EXTERN int uv_dlopen(const char* filename, uv_lib_t* lib);
    UV_EXTERN void uv_dlclose(uv_lib_t* lib);
    UV_EXTERN int uv_dlsym(uv_lib_t* lib, const char* name, void** ptr);
    UV_EXTERN const char* uv_dlerror(const uv_lib_t* lib);

    UV_EXTERN int uv_mutex_init(uv_mutex_t* handle);
    UV_EXTERN int uv_mutex_init_recursive(uv_mutex_t* handle);
    UV_EXTERN void uv_mutex_destroy(uv_mutex_t* handle);
    UV_EXTERN void uv_mutex_lock(uv_mutex_t* handle);
    UV_EXTERN int uv_mutex_trylock(uv_mutex_t* handle);
    UV_EXTERN void uv_mutex_unlock(uv_mutex_t* handle);

    UV_EXTERN int uv_rwlock_init(uv_rwlock_t* rwlock);
    UV_EXTERN void uv_rwlock_destroy(uv_rwlock_t* rwlock);
    UV_EXTERN void uv_rwlock_rdlock(uv_rwlock_t* rwlock);
    UV_EXTERN int uv_rwlock_tryrdlock(uv_rwlock_t* rwlock);
    UV_EXTERN void uv_rwlock_rdunlock(uv_rwlock_t* rwlock);
    UV_EXTERN void uv_rwlock_wrlock(uv_rwlock_t* rwlock);
    UV_EXTERN int uv_rwlock_trywrlock(uv_rwlock_t* rwlock);
    UV_EXTERN void uv_rwlock_wrunlock(uv_rwlock_t* rwlock);

    UV_EXTERN int uv_sem_init(uv_sem_t* sem, unsigned int value);
    UV_EXTERN void uv_sem_destroy(uv_sem_t* sem);
    UV_EXTERN void uv_sem_post(uv_sem_t* sem);
    UV_EXTERN void uv_sem_wait(uv_sem_t* sem);
    UV_EXTERN int uv_sem_trywait(uv_sem_t* sem);

    UV_EXTERN int uv_cond_init(uv_cond_t* cond);
    UV_EXTERN void uv_cond_destroy(uv_cond_t* cond);
    UV_EXTERN void uv_cond_signal(uv_cond_t* cond);
    UV_EXTERN void uv_cond_broadcast(uv_cond_t* cond);

    UV_EXTERN int uv_barrier_init(uv_barrier_t* barrier, unsigned int count);
    UV_EXTERN void uv_barrier_destroy(uv_barrier_t* barrier);
    UV_EXTERN int uv_barrier_wait(uv_barrier_t* barrier);

    UV_EXTERN void uv_cond_wait(uv_cond_t* cond, uv_mutex_t* mutex);
    UV_EXTERN int uv_cond_timedwait(uv_cond_t* cond,
                                    uv_mutex_t* mutex,
                                    uint64_t timeout);

    UV_EXTERN void uv_once(uv_once_t* guard, void (*callback)(void));

    UV_EXTERN int uv_key_create(uv_key_t* key);
    UV_EXTERN void uv_key_delete(uv_key_t* key);
    UV_EXTERN void* uv_key_get(uv_key_t* key);
    UV_EXTERN void uv_key_set(uv_key_t* key, void* value);

    UV_EXTERN int uv_gettimeofday(uv_timeval64_t* tv);

    typedef void (*uv_thread_cb)(void* arg);

    UV_EXTERN int uv_thread_create(uv_thread_t* tid, uv_thread_cb entry, void* arg);

    typedef enum
    {
        UV_THREAD_NO_FLAGS = 0x00,
        UV_THREAD_HAS_STACK_SIZE = 0x01
    } uv_thread_create_flags;

    struct uv_thread_options_s
    {
        unsigned int flags;
        size_t stack_size;
        /* More fields may be added at any time. */
    };

    typedef struct uv_thread_options_s uv_thread_options_t;

    UV_EXTERN int uv_thread_create_ex(uv_thread_t* tid,
                                      const uv_thread_options_t* params,
                                      uv_thread_cb entry,
                                      void* arg);
    UV_EXTERN uv_thread_t uv_thread_self(void);
    UV_EXTERN int uv_thread_join(uv_thread_t* tid);
    UV_EXTERN int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2);


    UV_EXTERN void uv_set_send_buff_size(int i);
    UV_EXTERN void uv_set_recv_buff_size(int i);
    UV_EXTERN int uv_get_send_buff_size();
    UV_EXTERN int uv_get_recv_buff_size();

    /* The presence of these unions force similar struct layout. */
#define XX(_, name) uv_ ## name ## _t name;
    union uv_any_handle
    {
        UV_HANDLE_TYPE_MAP(XX)
    };

    union uv_any_req
    {
        UV_REQ_TYPE_MAP(XX)
    };
#undef XX


    struct uv_loop_s
    {
        /* User data - use this for whatever. */
        void* data;
        /* Loop reference counting. */
        unsigned int active_handles;
        void* handle_queue[2];
        union
        {
            void* unused;
            unsigned int count;
        } active_reqs;
        /* Internal storage for future extensions. */
        void* internal_fields;
        /* Internal flag to signal loop stop. */
        unsigned int stop_flag;
        UV_LOOP_PRIVATE_FIELDS
    };

    UV_EXTERN void* uv_loop_get_data(const uv_loop_t*);
    UV_EXTERN void uv_loop_set_data(uv_loop_t*, void* data);

    /* Don't export the private CPP symbols. */
#undef UV_HANDLE_TYPE_PRIVATE
#undef UV_REQ_TYPE_PRIVATE
#undef UV_REQ_PRIVATE_FIELDS
#undef UV_STREAM_PRIVATE_FIELDS
#undef UV_TCP_PRIVATE_FIELDS
#undef UV_PREPARE_PRIVATE_FIELDS
#undef UV_CHECK_PRIVATE_FIELDS
#undef UV_IDLE_PRIVATE_FIELDS
#undef UV_ASYNC_PRIVATE_FIELDS
#undef UV_TIMER_PRIVATE_FIELDS
#undef UV_GETADDRINFO_PRIVATE_FIELDS
#undef UV_GETNAMEINFO_PRIVATE_FIELDS
#undef UV_FS_REQ_PRIVATE_FIELDS
#undef UV_WORK_PRIVATE_FIELDS
#undef UV_FS_EVENT_PRIVATE_FIELDS
#undef UV_SIGNAL_PRIVATE_FIELDS
#undef UV_LOOP_PRIVATE_FIELDS
#undef UV_LOOP_PRIVATE_PLATFORM_FIELDS
#undef UV__ERR

#ifdef __cplusplus
}
#endif
#endif /* UV_H */
